用简便算法计算:1.6×1.25+8=

2025-04-04 14:10:25
推荐回答(2个)
回答1:

1.6×1.25+8
=0.2×8×1.25+8
=0.2×10+8
=2+8
=10

回答2:

1.6×1.25+8
=2x(0.8x1.25)+8
=2x1+8
=10